121112122 has 4 divisors (see below), whose sum is σ = 181668186. Its totient is φ = 60556060.

The previous prime is 121112113. The next prime is 121112129. The reversal of 121112122 is 221211121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 62267881 + 58844241 = 7891^2 + 7671^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (121112129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30278029 + ... + 30278032.

Almost surely, 2^121112122 is an apocalyptic number.

121112122 is a deficient number, since it is larger than the sum of its proper divisors (60556064).

121112122 is an equidigital number, since it uses as much as digits as its factorization.

121112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60556063.

The product of its digits is 16, while the sum is 13.

The square root of 121112122 is about 11005.0952744626. The cubic root of 121112122 is about 494.7614699482.

Adding to 121112122 its reverse (221211121), we get a palindrome (342323243).

It can be divided in two parts, 1211121 and 22, that multiplied together give a palindrome (26644662).

The spelling of 121112122 in words is "one hundred twenty-one million, one hundred twelve thousand, one hundred twenty-two".